In the Chapter on Hunger (Bab al-Ju') of Kashf al-Mahjub, Hujwiri establishes the spiritual nobility of hunger (gorosnegi / ju') as a virtue praised across nations and peoples. He teaches that hunger produces submission in the lower soul (khudu' li'l-nafs) and humility in the heart (khushu' li'l-qalb): the hungry seeker gains a sharper intellect, a more refined temperament, and a sounder body, because carnal strength (qovvat-e nafsani) is diminished through ascetic self-training (riyazat). Citing the Quranic trial by hunger (al-Baqarah 155) and prophetic traditions that prefer a single hungry stomach to seventy heedless worshippers, Hujwiri frames voluntary hunger as a foundational discipline of the Sufi path.